Nero is 19 years old in Devil May Cry 4. This age is widely accepted based on the timeline of the series and character ages given in various sources, including fan-compiled timelines and character profiles. For instance, Dante is about 38 in DMC4, and Nero is about 10 years younger, making him 19 at that time
. Additionally, multiple fan discussions and timelines corroborate that Nero is around 19 during the events of DMC4
. In summary, Nero is approximately 19 years old in Devil May Cry 4.
